54 Pa.C.S. § 1522

No person shall use, give, buy, take, destroy, sell or otherwise dispose of, or traffic in, articles or supplies, fill or refill any vessel, receptacle or utensil upon which a mark registered under this chapter is produced, or refuse to return such articles or supplies on demand of the owner, or to deface, erase, obliterate, cover up or otherwise remove or conceal any such name, mark or device, unless consent of the owner is obtained or unless the articles or supplies shall have been purchased from the owner.